the individual if you would have taught that in a classroom environment adjust a discussion on -- [inaudible] that's very important dynamic there. >> game changer, shell gas, more regulation, barrier, culture. i want to talk about the here mowns. [laughter] mcken city is about the cutting age looking at not only global manufacturing trends but trends you're describing advanced industry. and innovation. how do you see it? >> i think very much is said at the beginning of the context claus. there's a shift doing on. i think we should start by saying too many of us lump manufacturing in to one big category. i think there are at least five categories. i won't bore with them. i think the tip is the advanced manufacturing which is more using big data. it's advanced material. it's nano technology. it's the combination of many of the things the innovation capabilities that this country is good at the cross functional capability. as you said, it's -- it's roughly around 11 to 12% of gdp. it's extremely important fly wheel. it accounts, football we think, a third of the u.s. productivity growth. that 1